{"id":1954,"date":"2026-04-27T12:35:00","date_gmt":"2026-04-27T05:35:00","guid":{"rendered":"https:\/\/inoxcuongthinh.com\/quy-trinh-chuan-phuc-hoi-do-bong-guong-8k-cho-inox-cu-mo\/"},"modified":"2026-04-27T12:35:00","modified_gmt":"2026-04-27T05:35:00","slug":"quy-trinh-chuan-phuc-hoi-do-bong-guong-8k-cho-inox-cu-mo","status":"publish","type":"post","link":"https:\/\/inoxcuongthinh.com\/quy-trinh-chuan-phuc-hoi-do-bong-guong-8k-cho-inox-cu-mo\/","title":{"rendered":"Quy tr\u00ecnh chu\u1ea9n ph\u1ee5c h\u1ed3i \u0111\u1ed9 b\u00f3ng g\u01b0\u01a1ng 8K cho Inox c\u0169, m\u1edd"},"content":{"rendered":"<div class=\"custom-toc\">\n<h3>N\u1ed9i dung ch\u00ednh<\/h3>\n<ul>\n<li><a href=\"#toc-0-khi-nao-can-phuc-hoi-do-bong-guong-va-nhung-gioi-h\">Khi n\u00e0o c\u1ea7n ph\u1ee5c h\u1ed3i \u0111\u1ed9 b\u00f3ng g\u01b0\u01a1ng v\u00e0 nh\u1eefng gi\u1edbi h\u1ea1n c\u1ea7n bi\u1ebft<\/a><\/li>\n<li><a href=\"#toc-1-nguyen-nhan-lam-inox-bi-mo-va-xin\">Nguy\u00ean nh\u00e2n l\u00e0m inox b\u1ecb m\u1edd v\u00e0 x\u1ec9n<\/a><\/li>\n<li><a href=\"#toc-2-quy-trinh-chuan-phuc-hoi-do-bong-guong-8-buoc-hien\">Quy tr\u00ecnh chu\u1ea9n ph\u1ee5c h\u1ed3i \u0111\u1ed9 b\u00f3ng g\u01b0\u01a1ng (8 b\u01b0\u1edbc, hi\u1ec7n tr\u01b0\u1eddng ho\u1eb7c x\u01b0\u1edfng)<\/a><\/li>\n<li><a href=\"#toc-3-thong-so-ky-thuat-va-kiem-soat-chat-luong\">Th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt v\u00e0 ki\u1ec3m so\u00e1t ch\u1ea5t l\u01b0\u1ee3ng<\/a><\/li>\n<li><a href=\"#toc-4-dung-cu-va-vat-tu-khuyen-nghi-de-tim-tai-viet-nam\">D\u1ee5ng c\u1ee5 v\u00e0 v\u1eadt t\u01b0 khuy\u1ebfn ngh\u1ecb (d\u1ec5 t\u00ecm t\u1ea1i Vi\u1ec7t Nam)<\/a><\/li>\n<li><a href=\"#toc-5-quy-trinh-rut-gon-cho-thi-cong-tai-cho-on-site\">Quy tr\u00ecnh r\u00fat g\u1ecdn cho thi c\u00f4ng t\u1ea1i ch\u1ed7 (on-site)<\/a><\/li>\n<li><a href=\"#toc-6-loi-thuong-gap-va-cach-khac-phuc\">L\u1ed7i th\u01b0\u1eddng g\u1eb7p v\u00e0 c\u00e1ch kh\u1eafc ph\u1ee5c<\/a><\/li>\n<li><a href=\"#toc-7-thoi-gian-va-chi-phi-tham-khao\">Th\u1eddi gian v\u00e0 chi ph\u00ed tham kh\u1ea3o<\/a><\/li>\n<li><a href=\"#toc-8-cau-hoi-thuong-gap\">C\u00e2u h\u1ecfi th\u01b0\u1eddng g\u1eb7p<\/a><\/li>\n<li><a href=\"#toc-9-nguon-tham-khao\">Ngu\u1ed3n tham kh\u1ea3o<\/a><\/li>\n<li><a href=\"#toc-10-ket-luan\">K\u1ebft lu\u1eadn<\/a><\/li>\n<\/ul>\n<\/div>\n<p>Inox sau th\u1eddi gian s\u1eed d\u1ee5ng c\u00f3 th\u1ec3 b\u1ecb x\u1ec9n, tr\u1ea7y x\u01b0\u1edbc, \u201c\u1ed1 tr\u00e0\u201d ho\u1eb7c m\u1edd do l\u1eabn s\u1eaft, h\u00f3a ch\u1ea5t v\u00e0 b\u1ee5i c\u00f4ng nghi\u1ec7p. B\u00e0i vi\u1ebft n\u00e0y h\u01b0\u1edbng d\u1eabn chi ti\u1ebft quy tr\u00ecnh ph\u1ee5c h\u1ed3i \u0111\u1ed9 b\u00f3ng g\u01b0\u01a1ng (No.8\/8K) cho s\u1ea3n ph\u1ea9m inox b\u1ecb c\u0169, m\u1edd \u2014 t\u1eeb \u0111\u00e1nh gi\u00e1 hi\u1ec7n tr\u1ea1ng, l\u00e0m s\u1ea1ch, m\u00e0i\u2013\u0111\u00e1nh b\u00f3ng nhi\u1ec1u c\u1ea5p, \u0111\u1ebfn th\u1ee5 \u0111\u1ed9ng h\u00f3a v\u00e0 b\u1ea3o v\u1ec7 b\u1ec1 m\u1eb7t. \u0110\u00e2y l\u00e0 m\u1ed9t ph\u1ea7n thi\u1ebft y\u1ebfu trong b\u1ea3o d\u01b0\u1ee1ng chuy\u00ean s\u00e2u, gi\u00fap k\u00e9o d\u00e0i tu\u1ed5i th\u1ecd v\u00e0 t\u00ednh th\u1ea9m m\u1ef9 c\u1ee7a inox trong c\u00f4ng tr\u00ecnh, nh\u00e0 x\u01b0\u1edfng v\u00e0 thi\u1ebft b\u1ecb c\u00f4ng nghi\u1ec7p.<\/p>\n<h2 id=\"toc-0-khi-nao-can-phuc-hoi-do-bong-guong-va-nhung-gioi-h\">Khi n\u00e0o c\u1ea7n ph\u1ee5c h\u1ed3i \u0111\u1ed9 b\u00f3ng g\u01b0\u01a1ng v\u00e0 nh\u1eefng gi\u1edbi h\u1ea1n c\u1ea7n bi\u1ebft<\/h2>\n<p>&#8211; B\u1ec1 m\u1eb7t xu\u1ea5t hi\u1ec7n: x\u01b0\u1edbc xo\u00e1y, \u1ed1 v\u00e0ng\/n\u00e2u (tea staining), v\u1ec7t h\u00e0n loang xanh\u2013n\u00e2u, v\u1ebft \u0103n m\u00f2n \u0111i\u1ec3m (pitting), m\u1edd x\u1ec9n to\u00e0n b\u1ed9.<br \/>\n&#8211; M\u1ee5c ti\u00eau th\u1ef1c t\u1ebf: \u0111\u1ed9 b\u00f3ng g\u01b0\u01a1ng \u0111\u1ea1t Ra \u2264 0,05 \u03bcm, \u0111\u1ed9 b\u00f3ng \u0111o \u1edf 60\u00b0 > 90 GU (tham chi\u1ebfu ti\u00eau chu\u1ea9n \u0111o \u0111\u1ed9 b\u00f3ng ASTM D523).<br \/>\n&#8211; Gi\u1edbi h\u1ea1n:<br \/>\n  &#8211; K\u1ebft c\u1ea5u \u0111\u00e3 b\u1ecb pitting s\u00e2u, \u0103n m\u00f2n k\u1ebd h\u1edf ho\u1eb7c bi\u1ebfn d\u1ea1ng c\u01a1 h\u1ecdc n\u1eb7ng c\u00f3 th\u1ec3 kh\u00f4ng ph\u1ee5c h\u1ed3i ho\u00e0n to\u00e0n.<br \/>\n  &#8211; Inox 201 \u00edt kh\u00e1ng \u0103n m\u00f2n h\u01a1n 304\/316; trong m\u00f4i tr\u01b0\u1eddng ven bi\u1ec3n\/ho\u00e1 ch\u1ea5t, n\u00ean c\u00e2n nh\u1eafc thay th\u1ebf v\u1eadt li\u1ec7u ho\u1eb7c ph\u1ee7 b\u1ea3o v\u1ec7 sau khi \u0111\u00e1nh b\u00f3ng.<br \/>\n  &#8211; H\u1ecda ti\u1ebft hairline\/No.4 kh\u00f4ng th\u1ec3 bi\u1ebfn th\u00e0nh g\u01b0\u01a1ng ho\u00e0n h\u1ea3o n\u1ebfu kh\u00f4ng m\u00e0i ph\u1eb3ng to\u00e0n b\u1ed9.<\/p>\n<h2 id=\"toc-1-nguyen-nhan-lam-inox-bi-mo-va-xin\">Nguy\u00ean nh\u00e2n l\u00e0m inox b\u1ecb m\u1edd v\u00e0 x\u1ec9n<\/h2>\n<p>&#8211; L\u1eabn s\u1eaft\/carbon steel t\u1eeb d\u1ee5ng c\u1ee5 m\u00e0i, phoi s\u1eaft b\u1eafn d\u00ednh (g\u00e2y \u1ed1 n\u00e2u, \u0103n m\u00f2n \u0111i\u1ec3m).<br \/>\n&#8211; D\u01b0 l\u01b0\u1ee3ng h\u00f3a ch\u1ea5t c\u00f3 clo, axit m\u1ea1nh ho\u1eb7c mu\u1ed1i \u0111\u01b0\u1eddng gi\u00f3 bi\u1ec3n.<br \/>\n&#8211; Nhi\u1ec7t v\u00f9ng h\u00e0n t\u1ea1o \u201cheat tint\u201d l\u00e0m suy y\u1ebfu l\u1edbp th\u1ee5 \u0111\u1ed9ng.<br \/>\n&#8211; Tr\u1ea7y x\u01b0\u1edbc trong v\u1ec7 sinh, v\u1eadn chuy\u1ec3n (mi\u1ebfng ch\u00e0, c\u00e1t b\u1ee5i).<br \/>\n&#8211; B\u1ee5i c\u00f4ng nghi\u1ec7p, d\u1ea7u m\u1ee1 oxy ho\u00e1, kh\u00f4ng v\u1ec7 sinh \u0111\u1ecbnh k\u1ef3.<\/p>\n<h2 id=\"toc-2-quy-trinh-chuan-phuc-hoi-do-bong-guong-8-buoc-hien\">Quy tr\u00ecnh chu\u1ea9n ph\u1ee5c h\u1ed3i \u0111\u1ed9 b\u00f3ng g\u01b0\u01a1ng (8 b\u01b0\u1edbc, hi\u1ec7n tr\u01b0\u1eddng ho\u1eb7c x\u01b0\u1edfng)<\/h2>\n<h3>B\u01b0\u1edbc 1: Kh\u1ea3o s\u00e1t \u2013 th\u1eed m\u1eabu \u2013 x\u00e1c \u0111\u1ecbnh v\u1eadt li\u1ec7u<\/h3>\n<p>&#8211; X\u00e1c \u0111\u1ecbnh m\u00e1c inox (201\/304\/316) b\u1eb1ng h\u1ed3 s\u01a1 k\u1ef9 thu\u1eadt, th\u1eed PMI\/XRF n\u1ebfu c\u00f3; th\u1eed nam ch\u00e2m ch\u1ec9 mang t\u00ednh tham kh\u1ea3o.<br \/>\n&#8211; Ghi nh\u1eadn t\u00ecnh tr\u1ea1ng: m\u1ee9c x\u01b0\u1edbc, v\u1ebft h\u00e0n, pitting, \u1ed1 tr\u00e0, di\u1ec7n t\u00edch, y\u00eau c\u1ea7u th\u1ea9m m\u1ef9.<br \/>\n&#8211; L\u00e0m m\u1eabu t\u1ea1i m\u1ed9t g\u00f3c khu\u1ea5t (0,05\u20130,1 m\u00b2) \u0111\u1ec3 ch\u1ed1t chu\u1ed7i h\u1ea1t m\u00e0i\/compound, t\u1ed1c \u0111\u1ed9, th\u1eddi gian.<\/p>\n<h3>B\u01b0\u1edbc 2: T\u1ea9y d\u1ea7u m\u1ee1 v\u00e0 kh\u1eed nhi\u1ec5m s\u1eaft<\/h3>\n<p>&#8211; T\u1ea9y d\u1ea7u b\u1eb1ng dung d\u1ecbch ki\u1ec1m nh\u1eb9 pH 10\u201312 ho\u1eb7c ch\u1ea5t t\u1ea9y r\u1eeda chuy\u00ean cho inox; ch\u00e0 b\u1eb1ng pad kh\u00f4ng d\u1ec7t (Scotch-Brite x\u00e1m), r\u1eeda s\u1ea1ch, lau kh\u00f4.<br \/>\n&#8211; Kh\u1eed nhi\u1ec5m s\u1eaft\/\u201ctea staining\u201d:<br \/>\n  &#8211; D\u00f9ng gel t\u1ea9y g\u1ec9 chuy\u00ean d\u1ee5ng cho inox (v\u00ed d\u1ee5 h\u1ecd Avesta\/Voestalpine) theo h\u01b0\u1edbng d\u1eabn nh\u00e0 s\u1ea3n xu\u1ea5t; r\u1eeda \u00e1p l\u1ef1c cao, trung h\u00f2a.<br \/>\n  &#8211; An to\u00e0n: tr\u00e1nh s\u1ea3n ph\u1ea9m ch\u1ee9a HF n\u1ebfu kh\u00f4ng c\u00f3 hu\u1ea5n luy\u1ec7n v\u00e0 PPE chuy\u00ean d\u1ee5ng. C\u00f3 th\u1ec3 thay b\u1eb1ng th\u1ee5 \u0111\u1ed9ng h\u00f3a g\u1ed1c citric (ASTM A967, lo\u1ea1i C) khi kh\u00f4ng c\u00f3 heat tint n\u1eb7ng.<br \/>\n&#8211; Tuy\u1ec7t \u0111\u1ed1i kh\u00f4ng d\u00f9ng b\u00f9i nh\u00f9i th\u00e9p carbon; d\u1ee5ng c\u1ee5 cho inox ph\u1ea3i ri\u00eang bi\u1ec7t.<\/p>\n<p>Ngu\u1ed3n tham kh\u1ea3o: ASTM A380 (l\u00e0m s\u1ea1ch &#038; kh\u1eed nhi\u1ec5m), ASTM A967 (th\u1ee5 \u0111\u1ed9ng h\u00f3a).<\/p>\n<h3>B\u01b0\u1edbc 3: S\u1eeda x\u01b0\u1edbc \u2013 t\u1ea1o ph\u1eb3ng (m\u00e0i c\u01a1 h\u1ecdc nhi\u1ec1u c\u1ea5p)<\/h3>\n<p>M\u1ee5c ti\u00eau: lo\u1ea1i b\u1ecf x\u01b0\u1edbc s\u00e2u\/v\u1ebft h\u00e0n v\u00e0 \u0111\u01b0a b\u1ec1 m\u1eb7t v\u1ec1 \u0111\u1ed9 ph\u1eb3ng ph\u00f9 h\u1ee3p tr\u01b0\u1edbc khi \u0111\u00e1nh b\u00f3ng.<\/p>\n<p>&#8211; L\u1ef1a ch\u1ecdn chu\u1ed7i h\u1ea1t m\u00e0i theo t\u00ecnh tr\u1ea1ng:<br \/>\n  &#8211; X\u01b0\u1edbc n\u1eb7ng\/v\u1ebft h\u00e0n: P180 \u2192 P240 \u2192 P320 \u2192 P400.<br \/>\n  &#8211; X\u01b0\u1edbc trung b\u00ecnh: P320 \u2192 P400 \u2192 P600.<br \/>\n  &#8211; X\u01b0\u1edbc nh\u1eb9\/m\u1edd x\u1ec9n: P400 \u2192 P600 \u2192 P800 (ho\u1eb7c tr\u1ef1c ti\u1ebfp sang vi h\u1ea1t).<br \/>\n&#8211; D\u00f9ng \u0111\u0129a m\u00e0i\/nh\u00e1m qu\u1ef9 \u0111\u1ea1o 125\u2013150 mm, m\u00e1y m\u00e0i g\u00f3c v\u1edbi \u0111\u1ebf m\u00fat m\u1ec1m, ho\u1eb7c m\u00e1y \u0111ai; lu\u00f4n \u0111i \u0111\u1ec1u tay, ch\u1ed3ng bi\u00ean 30\u201350%, \u0111\u1ed5i h\u01b0\u1edbng 90\u00b0 m\u1ed7i c\u1ea5p \u0111\u1ec3 xo\u00e1 \u201cv\u1ebft ma\u201d.<br \/>\n&#8211; Ki\u1ec3m so\u00e1t nhi\u1ec7t: gi\u1eef b\u1ec1 m\u1eb7t < 60\u00b0C; gi\u1ea3m l\u1ef1c t\u00ec (2\u20135 kgf), t\u0103ng t\u1ed1c m\u00e0i v\u1eeba \u0111\u1ee7, ngh\u1ec9 gi\u1eefa nh\u00e1t m\u00e0i, c\u00f3 th\u1ec3 phun s\u01b0\u01a1ng.  \n- Tinh vi b\u1ec1 m\u1eb7t b\u1eb1ng nh\u00e1m vi c\u1ea5u tr\u00fac (3M Trizact A45 \u2192 A30 \u2192 A16 \u2192 A6) \u0111\u1ec3 \u0111\u1ea1t Ra ~0,1\u20130,06 \u03bcm tr\u01b0\u1edbc khi \u0111\u00e1nh b\u00f3ng.\n\n\n\n<h3>B\u01b0\u1edbc 4: \u0110\u00e1nh b\u00f3ng th\u00f4 (cut buff)<\/h3>\n<p>&#8211; B\u00e1nh \u0111\u00e1nh b\u00f3ng s\u1ee3i sisal\/kh\u00e2u c\u1ee9ng + h\u1ee3p ch\u1ea5t c\u1eaft (brown Tripoli\/ Menzerna P14F).<br \/>\n&#8211; T\u1ed1c \u0111\u1ed9 ngo\u1ea1i vi khuy\u1ebfn ngh\u1ecb: 25\u201335 m\/s (v\u00ed d\u1ee5 b\u00e1nh 200 mm: ~2400\u20133300 rpm, theo gi\u1edbi h\u1ea1n NSX); \u0111i ch\u1eadm, \u0111\u01b0\u1eddng ch\u1ed3ng 50%, tr\u00e1nh d\u1eebng m\u1ed9t ch\u1ed7 g\u00e2y ch\u00e1y.<br \/>\n&#8211; Lau s\u1ea1ch c\u1eb7n b\u1ed9t b\u1eb1ng kh\u0103n microfiber + IPA tr\u01b0\u1edbc khi chuy\u1ec3n c\u1ea5p.<\/p>\n<h3>B\u01b0\u1edbc 5: \u0110\u00e1nh b\u00f3ng trung (color polish)<\/h3>\n<p>&#8211; B\u00e1nh b\u00f4ng kh\u00e2u trung b\u00ecnh + h\u1ee3p ch\u1ea5t xanh (Cr2O3) ho\u1eb7c tr\u1eafng (Al2O3) cho inox (v\u00ed d\u1ee5 Menzerna Green\/480W).<br \/>\n&#8211; M\u1ee5c ti\u00eau: lo\u1ea1i v\u1ebft \u201ccut\u201d c\u00f2n l\u1ea1i, \u0111\u1ea1t b\u1ec1 m\u1eb7t ph\u1ea3n quang \u0111\u1ed3ng \u0111\u1ec1u.<br \/>\n&#8211; Duy tr\u00ec \u00e1p l\u1ef1c nh\u1eb9\u2013trung b\u00ecnh, l\u00e0m m\u00e1t \u0111\u1ecbnh k\u1ef3.<\/p>\n<h3>B\u01b0\u1edbc 6: \u0110\u00e1nh b\u00f3ng g\u01b0\u01a1ng (finish)<\/h3>\n<p>&#8211; B\u00e1nh b\u00f4ng m\u1ec1m\/airway m\u1ec1m + h\u1ee3p ch\u1ea5t ho\u00e0n thi\u1ec7n (tr\u1eafng\/ xanh d\u01b0\u01a1ng si\u00eau m\u1ecbn).<br \/>\n&#8211; T\u1ea1o \u201cmirror\u201d li\u00ean t\u1ee5c, kh\u00f4ng \u0111\u1ec3 l\u1ea1i qu\u1ea7ng; c\u00f3 th\u1ec3 \u201cm\u1ea1 m\u00e0u\u201d nh\u1eb9 l\u1ea7n cu\u1ed1i v\u1edbi compound s\u1ea1ch.<br \/>\n&#8211; K\u1ebft th\u00fac: lau b\u1eb1ng kh\u0103n s\u1ea1ch + IPA. Kh\u00f4ng ch\u1ea1m tay tr\u1ea7n.<\/p>\n<h3>B\u01b0\u1edbc 7: Th\u1ee5 \u0111\u1ed9ng h\u00f3a v\u00e0 r\u1eeda trung t\u00ednh<\/h3>\n<p>&#8211; Th\u1ee5 \u0111\u1ed9ng h\u00f3a theo ASTM A967 (dung d\u1ecbch citric ho\u1eb7c nitric c\u1ea5p c\u00f4ng nghi\u1ec7p), th\u1eddi gian\/nh\u1ec7t \u0111\u1ed9 theo TDS; r\u1eeda DI k\u1ef9, ki\u1ec3m tra \u201cwater-break free\u201d.<br \/>\n&#8211; V\u1edbi chi ti\u1ebft ph\u1ee9c t\u1ea1p ho\u1eb7c y\u00eau c\u1ea7u kh\u00e1ng \u0103n m\u00f2n cao, c\u00f3 th\u1ec3 ch\u1ecdn \u0111i\u1ec7n \u0111\u00e1nh b\u00f3ng (electropolishing) theo ASTM B912 \u0111\u1ec3 \u0111\u1ed3ng th\u1eddi l\u00e0m m\u1ecbn v\u00e0 th\u1ee5 \u0111\u1ed9ng.<\/p>\n<p>Ngu\u1ed3n tham kh\u1ea3o: ASTM A967\/A967M; ASTM B912.<\/p>\n<h3>B\u01b0\u1edbc 8: B\u1ea3o v\u1ec7 b\u1ec1 m\u1eb7t sau ph\u1ee5c h\u1ed3i<\/h3>\n<p>&#8211; T\u00f9y m\u00f4i tr\u01b0\u1eddng: ph\u1ee7 nano g\u1ed1m\/sol\u2013gel trong su\u1ed1t, s\u00e1p vi tinh th\u1ec3, ho\u1eb7c l\u1edbp ch\u1ed1ng v\u00e2n tay cho tay n\u1eafm\/thang m\u00e1y.<br \/>\n&#8211; Khuy\u1ebfn ngh\u1ecb v\u1ec7 sinh \u0111\u1ecbnh k\u1ef3 b\u1eb1ng ch\u1ea5t t\u1ea9y kh\u00f4ng ch\u1ee9a clo; r\u1eeda n\u01b0\u1edbc s\u1ea1ch sau khi ti\u1ebfp x\u00fac mu\u1ed1i\/axit.<\/p>\n<p>Ngu\u1ed3n tham kh\u1ea3o: Nickel Institute \u2013 Care and Cleaning of Stainless Steel; Outokumpu \u2013 Cleaning and maintenance guidance.<\/p>\n<h2 id=\"toc-3-thong-so-ky-thuat-va-kiem-soat-chat-luong\">Th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt v\u00e0 ki\u1ec3m so\u00e1t ch\u1ea5t l\u01b0\u1ee3ng<\/h2>\n<p>&#8211; \u0110\u1ed9 nh\u00e1m m\u1ee5c ti\u00eau: Ra \u2264 0,05 \u03bcm; Rz \u2264 0,3 \u03bcm (\u0111o theo ISO 4287\/4288).<br \/>\n&#8211; \u0110\u1ed9 b\u00f3ng: \u2265 90 GU \u1edf g\u00f3c 60\u00b0 (ASTM D523).<br \/>\n&#8211; Ki\u1ec3m tra nhi\u1ec5m s\u1eaft: th\u1eed Ferroxyl ho\u1eb7c \u0111\u1ed3ng sunfat (tham chi\u1ebfu ASTM A380).<br \/>\n&#8211; N\u01b0\u1edbc r\u00fat (water-break test): b\u1ec1 m\u1eb7t s\u1ea1ch cho m\u00e0ng n\u01b0\u1edbc li\u00ean t\u1ee5c, kh\u00f4ng \u0111\u1ee9t qu\u00e3ng.<br \/>\n&#8211; Nh\u1eadt k\u00fd quy tr\u00ecnh: ghi chu\u1ed7i h\u1ea1t, compound, t\u1ed1c \u0111\u1ed9, nhi\u1ec7t \u0111\u1ed9 b\u1ec1 m\u1eb7t, k\u1ebft qu\u1ea3 \u0111o Ra\/GU.<\/p>\n<h2 id=\"toc-4-dung-cu-va-vat-tu-khuyen-nghi-de-tim-tai-viet-nam\">D\u1ee5ng c\u1ee5 v\u00e0 v\u1eadt t\u01b0 khuy\u1ebfn ngh\u1ecb (d\u1ec5 t\u00ecm t\u1ea1i Vi\u1ec7t Nam)<\/h2>\n<p>&#8211; Nh\u00e1m\/kho\u00e1 vi c\u1ea5u tr\u00fac: 3M Trizact A45\/A30\/A16\/A6; \u0111ai\/\u0111\u0129a Klingspor, Sunmight, NCA Norax.<br \/>\n&#8211; Pad kh\u00f4ng d\u1ec7t: Scotch-Brite (x\u00e1m\/\u0111\u1ecf) cho l\u00e0m s\u1ea1ch v\u00e0 blend nh\u1eb9.<br \/>\n&#8211; B\u00e1nh \u0111\u00e1nh b\u00f3ng: sisal kh\u00e2u c\u1ee9ng; b\u00f4ng kh\u00e2u trung; b\u00f4ng m\u1ec1m\/airway m\u1ec1m (200\u2013350 mm).<br \/>\n&#8211; H\u1ee3p ch\u1ea5t: Tripoli n\u00e2u cho \u201ccut\u201d; Menzerna Green\/480W, P175, 3M Perfect-It Metal; Dialux Blanc\/Vert cho ho\u00e0n thi\u1ec7n.<br \/>\n&#8211; H\u00f3a ch\u1ea5t: ch\u1ea5t t\u1ea9y d\u1ea7u ki\u1ec1m nh\u1eb9; gel t\u1ea9y g\u1ec9\/th\u1ee5 \u0111\u1ed9ng h\u00f3a chuy\u00ean inox (\u01b0u ti\u00ean n\u1ec1n citric khi l\u00e0m hi\u1ec7n tr\u01b0\u1eddng); IPA\/kh\u0103n microfiber.<br \/>\n&#8211; PPE v\u00e0 an to\u00e0n: k\u00ednh, g\u0103ng c\u1eaft, kh\u1ea9u trang l\u1ecdc b\u1ee5i P2\/P3, \u1ed1ng h\u00fat b\u1ee5i, che ch\u1eafn tia l\u1eeda; n\u1ebfu d\u00f9ng ho\u00e1 ch\u1ea5t axit, b\u1eaft bu\u1ed9c c\u00f3 g\u0103ng ch\u1ecbu h\u00f3a ch\u1ea5t, t\u1ea1p d\u1ec1, th\u00f4ng gi\u00f3, kit trung h\u00f2a.<\/p>\n<p>Ngu\u1ed3n tham kh\u1ea3o k\u1ef9 thu\u1eadt v\u1eadt li\u1ec7u m\u00e0i\/\u0111\u00e1nh b\u00f3ng: 3M Trizact Technical Guide; Menzerna Metal Polishing Compounds.<\/p>\n<h2 id=\"toc-5-quy-trinh-rut-gon-cho-thi-cong-tai-cho-on-site\">Quy tr\u00ecnh r\u00fat g\u1ecdn cho thi c\u00f4ng t\u1ea1i ch\u1ed7 (on-site)<\/h2>\n<p>&#8211; Che ph\u1ee7 khu v\u1ef1c l\u00e2n c\u1eadn, th\u00e1o\/\u0111\u1ed5i h\u01b0\u1edbng ph\u1ee5 ki\u1ec7n c\u00f3 th\u1ec3 b\u1ecb b\u1ee5i.<br \/>\n&#8211; D\u00f9ng m\u00e1y \u0111\u00e1nh b\u00f3ng c\u1ea7m tay c\u00f3 \u0111i\u1ec1u t\u1ed1c, h\u00fat b\u1ee5i t\u00edch h\u1ee3p.<br \/>\n&#8211; \u00c1p d\u1ee5ng chu\u1ed7i: t\u1ea9y d\u1ea7u \u2192 kh\u1eed nhi\u1ec5m \u2192 P400\/P600 \u2192 Trizact A16\/A6 \u2192 cut buff \u2192 finish buff \u2192 th\u1ee5 \u0111\u1ed9ng h\u00f3a citric \u2192 lau IPA \u2192 ph\u1ee7 b\u1ea3o v\u1ec7.<br \/>\n&#8211; Ki\u1ec3m so\u00e1t ti\u1ebfng \u1ed3n, tia l\u1eeda, \u0111i\u1ec7n an to\u00e0n (ELCB), thu gom b\u1ed9t \u0111\u00e1nh b\u00f3ng \u0111\u1ec3 x\u1eed l\u00fd r\u00e1c c\u00f4ng nghi\u1ec7p.<\/p>\n<h2 id=\"toc-6-loi-thuong-gap-va-cach-khac-phuc\">L\u1ed7i th\u01b0\u1eddng g\u1eb7p v\u00e0 c\u00e1ch kh\u1eafc ph\u1ee5c<\/h2>\n<p>&#8211; Qu\u1ea7ng xo\u00e1y\/haze: ch\u01b0a xo\u00e1 v\u1ebft nh\u00e1m c\u1ea5p tr\u01b0\u1edbc; quay l\u1ea1i 1 c\u1ea5p nh\u00e1m tr\u01b0\u1edbc, \u0111\u1ed5i h\u01b0\u1edbng m\u00e0i, l\u00e0m s\u1ea1ch b\u00e1nh\/compound.<br \/>\n&#8211; Ch\u00e1y v\u00e0ng\/xanh: nhi\u1ec7t cao; gi\u1ea3m rpm\/l\u1ef1c, l\u00e0m m\u00e1t, \u0111\u1eebng \u201ct\u00ec ch\u1ebft\u201d t\u1ea1i m\u1ed9t \u0111i\u1ec3m.<br \/>\n&#8211; V\u1ec7t \u0111en t\u00e1i xu\u1ea5t: nhi\u1ec5m s\u1eaft ch\u01b0a lo\u1ea1i b\u1ecf; l\u1eb7p l\u1ea1i kh\u1eed nhi\u1ec5m\/ th\u1ee5 \u0111\u1ed9ng h\u00f3a, t\u00e1ch d\u1ee5ng c\u1ee5 inox\u2013th\u00e9p carbon.<br \/>\n&#8211; \u201cDa cam\u201d\/g\u1ee3n s\u00f3ng: n\u1ec1n kh\u00f4ng ph\u1eb3ng; m\u00e0i ph\u1eb3ng l\u1ea1i v\u1edbi pad c\u1ee9ng, t\u0103ng b\u1ec1 m\u1eb7t t\u1ef1a.<br \/>\n&#8211; B\u1ed9t compound b\u00e1m: qu\u00e1 nhi\u1ec1u ho\u1eb7c b\u1ec1 m\u1eb7t b\u1ea9n; d\u00f9ng \u00edt, v\u1ec7 sinh gi\u1eefa c\u00e1c c\u1ea5p b\u1eb1ng IPA.<\/p>\n<h2 id=\"toc-7-thoi-gian-va-chi-phi-tham-khao\">Th\u1eddi gian v\u00e0 chi ph\u00ed tham kh\u1ea3o<\/h2>\n<p>&#8211; L\u00e0m m\u1edbi nh\u1eb9 (kh\u00f4ng s\u1eeda h\u00e0n\/x\u01b0\u1edbc s\u00e2u): 0,8\u20131,5 gi\u1edd c\u00f4ng\/m\u00b2; v\u1eadt t\u01b0 80.000\u2013150.000 \u0111\/m\u00b2.<br \/>\n&#8211; Ph\u1ee5c h\u1ed3i n\u1eb7ng (c\u00f3 s\u1eeda x\u01b0\u1edbc\/h\u00e0n): 3\u20136 gi\u1edd c\u00f4ng\/m\u00b2; v\u1eadt t\u01b0 150.000\u2013300.000 \u0111\/m\u00b2.<br \/>\n&#8211; \u0110i\u1ec7n \u0111\u00e1nh b\u00f3ng ho\u1eb7c th\u1ee5 \u0111\u1ed9ng h\u00f3a \u0111\u1eb7c bi\u1ec7t ph\u1ee5 thu\u1ed9c h\u00ecnh d\u1ea1ng\/ti\u00eau chu\u1ea9n ch\u1ed1ng \u0103n m\u00f2n y\u00eau c\u1ea7u.<br \/>\n(L\u01b0u \u00fd: s\u1ed1 li\u1ec7u tham kh\u1ea3o, thay \u0111\u1ed5i theo h\u00ecnh h\u1ecdc chi ti\u1ebft, ti\u00eau chu\u1ea9n nghi\u1ec7m thu v\u00e0 \u0111i\u1ec1u ki\u1ec7n hi\u1ec7n tr\u01b0\u1eddng.)<\/p>\n<h2 id=\"toc-8-cau-hoi-thuong-gap\">C\u00e2u h\u1ecfi th\u01b0\u1eddng g\u1eb7p<\/h2>\n<p>&#8211; C\u00f3 c\u1ea7n thay m\u1edbi thay v\u00ec ph\u1ee5c h\u1ed3i?<br \/>\n  &#8211; N\u1ebfu pitting s\u00e2u lan r\u1ed9ng ho\u1eb7c v\u1eadt li\u1ec7u l\u00e0 201 \u1edf m\u00f4i tr\u01b0\u1eddng ven bi\u1ec3n, thay m\u1edbi\/ chuy\u1ec3n sang 316 + ph\u1ee7 b\u1ea3o v\u1ec7 s\u1ebd kinh t\u1ebf h\u01a1n v\u1ec1 v\u00f2ng \u0111\u1eddi.<br \/>\n&#8211; Sau khi ph\u1ee5c h\u1ed3i c\u00f3 b\u1ec1n nh\u01b0 m\u1edbi?<br \/>\n  &#8211; N\u1ebfu th\u1ee5 \u0111\u1ed9ng h\u00f3a \u0111\u00fang chu\u1ea9n v\u00e0 v\u1ec7 sinh \u0111\u1ecbnh k\u1ef3, \u0111\u1ed9 b\u1ec1n\/kh\u00e1ng \u1ed1 t\u01b0\u01a1ng \u0111\u01b0\u01a1ng b\u1ec1 m\u1eb7t g\u01b0\u01a1ng xu\u1ea5t x\u01b0\u1edfng.<br \/>\n&#8211; C\u00f3 th\u1ec3 b\u1ecf qua th\u1ee5 \u0111\u1ed9ng h\u00f3a?<br \/>\n  &#8211; Kh\u00f4ng khuy\u1ebfn ngh\u1ecb. M\u00e0i\u2013\u0111\u00e1nh b\u00f3ng ph\u00e1 v\u1ee1 l\u1edbp th\u1ee5 \u0111\u1ed9ng; c\u1ea7n t\u00e1i t\u1ea1o \u0111\u1ec3 \u1ed5n \u0111\u1ecbnh \u0103n m\u00f2n.<\/p>\n<h2 id=\"toc-9-nguon-tham-khao\">Ngu\u1ed3n tham kh\u1ea3o<\/h2>\n<p>&#8211; ASTM A380\/A380M \u2013 Cleaning, Descaling, and Passivation of Stainless Steel Parts.<br \/>\n&#8211; ASTM A967\/A967M \u2013 Chemical Passivation Treatments for Stainless Steel Parts.<br \/>\n&#8211; ASTM B912 \u2013 Passivation of Stainless Steels Using Electropolishing.<br \/>\n&#8211; ASTM D523 \u2013 Standard Test Method for Specular Gloss.<br \/>\n&#8211; ISO 4287\/4288 \u2013 Geometrical Product Specifications (GPS) \u2013 Surface texture: Profile method.<br \/>\n&#8211; Nickel Institute \u2013 Care and Cleaning of Stainless Steel: https:\/\/nickelinstitute.org\/media\/3106\/care-and-cleaning-of-stainless-steel.pdf<br \/>\n&#8211; Outokumpu \u2013 Cleaning and maintenance of stainless steel: https:\/\/www.outokumpu.com\/what-we-do\/what-is-stainless-steel\/handling-and-fabrication\/cleaning<br \/>\n&#8211; Menzerna Metal Polishing Compounds: https:\/\/www.menzerna.com\/industrial-compounds\/metal<br \/>\n&#8211; 3M Trizact Abrasives for Metal Finishing: https:\/\/www.3m.com<\/p>\n<h2 id=\"toc-10-ket-luan\">K\u1ebft lu\u1eadn<\/h2>\n<p>Ph\u1ee5c h\u1ed3i \u0111\u1ed9 b\u00f3ng g\u01b0\u01a1ng 8K cho inox c\u0169, m\u1edd l\u00e0 m\u1ed9t quy tr\u00ecnh k\u1ef9 thu\u1eadt g\u1ed3m: kh\u1eed nhi\u1ec5m\u2013l\u00e0m s\u1ea1ch chu\u1ea9n, m\u00e0i nhi\u1ec1u c\u1ea5p \u0111\u1ebfn vi h\u1ea1t, \u0111\u00e1nh b\u00f3ng 2\u20133 c\u1ea5p (cut\u2013color\u2013finish), th\u1ee5 \u0111\u1ed9ng h\u00f3a v\u00e0 b\u1ea3o v\u1ec7 b\u1ec1 m\u1eb7t. Ki\u1ec3m so\u00e1t nhi\u1ec7t, d\u00f9ng \u0111\u00fang v\u1eadt t\u01b0 cho inox v\u00e0 \u0111o ki\u1ec3m Ra\/GU gi\u00fap \u0111\u1ea1t k\u1ebft qu\u1ea3 \u1ed5n \u0111\u1ecbnh, ch\u1ed1ng \u1ed1 tr\u1edf l\u1ea1i. V\u1edbi chi ti\u1ebft ph\u1ee9c t\u1ea1p ho\u1eb7c y\u00eau c\u1ea7u kh\u00e1ng \u0103n m\u00f2n cao, c\u00e2n nh\u1eafc \u0111i\u1ec7n \u0111\u00e1nh b\u00f3ng v\u00e0 ph\u1ee7 b\u1ea3o v\u1ec7 sau c\u00f9ng. C\u1ea7n t\u01b0 v\u1ea5n quy tr\u00ecnh t\u1ed1i \u01b0u cho v\u1eadt li\u1ec7u\/hi\u1ec7n tr\u1ea1ng c\u1ee5 th\u1ec3? Li\u00ean h\u1ec7 Inox C\u01b0\u1eddng Th\u1ecbnh \u0111\u1ec3 \u0111\u01b0\u1ee3c h\u1ed7 tr\u1ee3 k\u1ef9 thu\u1eadt v\u00e0 b\u00e1o gi\u00e1 t\u1ed1t nh\u1ea5t.<\/p>\n<p>Li\u00ean h\u1ec7: Inox C\u01b0\u1eddng Th\u1ecbnh \u2013 Hotline: 0343.417.281 \u2013 Email: inoxcongnghiep.cuongthinh@gmail.com<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Quy tr\u00ecnh chu\u1ea9n ph\u1ee5c h\u1ed3i \u0111\u1ed9 b\u00f3ng g\u01b0\u01a1ng 8K cho inox c\u0169, m\u1edd: \u0111\u00e1nh gi\u00e1, t\u1ea9y g\u1ec9, m\u00e0i\u2013\u0111\u00e1nh b\u00f3ng nhi\u1ec1u c\u1ea5p, th\u1ee5 \u0111\u1ed9ng h\u00f3a, ki\u1ec3m tra v\u00e0 b\u1ea3o v\u1ec7 b\u1ec1 m\u1eb7t.<\/p>\n","protected":false},"author":7,"featured_media":1008,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[23],"tags":[],"class_list":["post-1954","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-tin-tuc"],"acf":[],"_links":{"self":[{"href":"https:\/\/inoxcuongthinh.com\/inct\/wp\/v2\/posts\/1954","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/inoxcuongthinh.com\/inct\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/inoxcuongthinh.com\/inct\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/inoxcuongthinh.com\/inct\/wp\/v2\/users\/7"}],"replies":[{"embeddable":true,"href":"https:\/\/inoxcuongthinh.com\/inct\/wp\/v2\/comments?post=1954"}],"version-history":[{"count":0,"href":"https:\/\/inoxcuongthinh.com\/inct\/wp\/v2\/posts\/1954\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/inoxcuongthinh.com\/inct\/wp\/v2\/media\/1008"}],"wp:attachment":[{"href":"https:\/\/inoxcuongthinh.com\/inct\/wp\/v2\/media?parent=1954"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/inoxcuongthinh.com\/inct\/wp\/v2\/categories?post=1954"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/inoxcuongthinh.com\/inct\/wp\/v2\/tags?post=1954"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}